Sewing-machine.



C. C. BLAKE.

SEWING MACHINE.

APPLICATION FILED Aue.\6. 1913.

1 ,284:,856. Patented Nov. 12, 1918'.

I2 SHEETS-SHEET I.

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C. C. BLAKE.

SEWING MACHINE.

APPLICATION FILED AUG. I6, I913. I 1,284,856. Patented Nov. 12,1918.

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SEWING MACHINE- APPLICATION FILED AUG.I6.I913.

C. C. BLAKE.

SEWING MACHINE.

APPLICATION mu) AUG. 16. 1913.

Patented Nov. 12, l918.

I2 SHEETS-SHEET 4.

C. C. BLAKE.

SEWING MACHINE APPLICATION FILED AUG-16, m3.

1,284,856. Patented Nov. 12, 1918.

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C. C. BLAKE.

SEWING MACHINE.

APPLICATION FILED AUG.I6, ma.

Patented Nov. 12, 1918.

12 $HEETSSHEET 8.

C. C. BLAKE.

SEWING MACHINE.

APPLICATION HLED Auehls. 19:3.

1 384,856- Patented Nov. 12, 1918.

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C. C. BLAKE.

SEWING MACHINE.

APPLICATION FILED'AUG-Hi 1913.

C. C. BLAKE.

SEWING MACHINE. APPLICATION FILED AUG. l6. HHS.

1,284,856. Patented Nov. 12,1918.

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C. C. BLAKE.

SEWING MACHINE.

APPugmou FILED AUG-16. 1913.

I2 SHEETS-SHEET l2.

"ii-y 14 Patented Nov. 12, 1918..

STATES PATENT OFFICE.

CHARLES C. BLAKE, OF BROOKLINE, MASSACHUSETTS, ASSIGNQR T BLAKE, INCORPORATED, OF BOSTON, MASSACHUSETTS; A CORPORATION OF NEW YORK.

SEWING-MACHINE.

To all whom it may concern:

Be it known that I, CHARM-3s C.-.BLAKE,

; a citizen-of the United States, residing at Brooklinc, i

th county of Norfolk and Stateof Mass chusetts, have invented a nev\ and useful Improvement in Sewing-Machines, of which, the following is a specification; Q i

The present invention rel-ates to sewing machines which are used to connect various components of articles together such, for instance, as the shoe upper, welt and insole of a welt shoe.

' together, by a. cl' annc. in

rarity bounded by the marginal abutment Such insoles are usually prepared for the sewing operation, that is, the operation of securing the shoe up )ci', welt and insole operation which consists in slitting a sole s iaped blank along its edge around the shank and forepart to form a: lip and a featheror by slittin its edge and also cutting one face of the b ank \vithiiythe edge cut thereby forming a flap parallel to. the lip. The lip or lip andflap are turned up at right angles to the cut face of the blank to form ama-rginal abutment the base of which receives. the stitches during the-sewing operation. After the sewing and inseam trimming operations the hcrcinbcfore referred to is filled with "round cork mixed with a suitable binder. "his construction permits the shoes to be exhibited to the trade with the forepart of the insoles in a flat condition. ','As soon, however, as these shoes'are worn the cork l'illcrbecomes displaced in the space between the inner and outer soles resultin in the N formation of a concave trough in he forepart of the-insole; ,The formation of a trough in the forepart of the insole is a source of great discomfort and injury to tllelfeet.

I propose to prevent the formation of this objectionable trough in. the forepart of the insole-by eliminating the necessity for the formation of a marginal abutment to receive .the inseam stitches and cohse-' quently-the need of using a filler between the inner and outer soles to fil-l the cavity bounded by the .Ina-rginal abutment. As a substitute for the marginalabutment to hold the inseam stitches I employ tongues formed 'ih one face of the insole over which the.

Specification of Letters Yatent.

size or position of the tongues .it in position over theitongues.

, 'tion thereover,

-manne-r as the ll-shaped tongues employed Patented Nov. 12, 191s.

191s. Serlallio. 785,142.

thread connecting the welt, upper and insole of a welt shoe or thesole and upper of a turn shoe is looped. It has been proposed heretofore to employ tongues to hold v I the stitches in bothwelt' and turn shoes but the construction of the, tongues and the 1 methods employed for their formation have been found im racticable.

The metho employed in forming the tongues for holding the "stitches in turn shoes consisted in 'providin asewing machine with an inclined -shaped chisel which cut a V-shaped incision in the face of the sole thus forming a tapering V-shaped tongue integral therewith over which the thread connecting the upper. and sole looped. This niethod was found impracticable, however, as it proved to be imossible for the operative to hold the shoe in his hand and swing-and tip the shoe at the proper time and to the proper extent so that the chisel. would ,uniforml; penc trate the sole att l le correct angle an depth. It was found tlhit any deviation in the angle. or depth of out seriously afiected the vented the sewing instrumentalities' from properly handling the thread andv setting which pre- As these tongues also taper in width and thickness throp hopt their length it was found imposslb e to prope'rlys set the thread in posieven when correctly formed,

as the tension with which the stitch was set caused the tapered tongue to buckle and in. turn. work permitted ,thetongue to buckle uxider' the tension employed. in setting the 'I 'h e principal pbject ofthe presentin'vention is to rovido novel and'improved means for fornimg tongues for:'-. the reception 91';

operation and" it produced tongues stitch and the thread to slip therefrom.

the stitches which connect the shoe up er,

I welt and insole of a welt Shoe or the s e thus so a per and outsole of a turn shoe or the parts of any article which it may be desired to secure to ether.

.To t e accomplishment of this object a feature of the invention contemplates the provision in a' machine provided with tongue forming devices, of means for insur ing the uniform formation of the tongues. The means for insuring the uniform formation of the tongues may be constructed and arranged eitherto gage the relative operative position of the tongue forming devices and the work or to relatively tip the tongue forming devices and then-york to maintain the tongue forming devicessnbstantially normal to the work. It is preferred, however, to so construct the means for insuring the uniform formation of the tongues in the work that it will gage the relative operative position of the tongue forming devices and the work and relatively ti the tongue forming devices and the wor to maintainthe tongue forming devices substantially normal to the work since with this construction all care and attention upon the part ofthe operative in forming the tongues are obviated.

Another object of the present invention is .to simplify and improve the devices for forming the ton 'ues. 1

To this end a urther feature of the invention contemplates the provision in a machine for forming tongues of a knife arranged to oaerate in a. lane substantially normal to the work, and an awl arranged to operate in a plane substantially normal to the plane of operation of the knife. With this construction all'the tongues formed in the work have a rectangular cross section su'bstantia'll uniform in width and thick-' ness throughout their length which provides a maximum amount of material to receive the stitches. Broadly considered the knife and awl may be constructed and arranged to form ton ues rectangular in cross section and suhstantialh uniform in width and thickness throu out their length in any manner found knifeso that it cuts a furcular slash in the work and to arrange the aw] so that it intersects the slash below arating the material of the work bOUIHlt by the tines of the fork from the body portion 'of the work and forming a tongue integral therewith.

In the broader aspects of the invention the gaging means for controlling the relative operative position of the tools and the work may take any elected form whether or not it positively controls the relative position of the tools and worker is mcrcly indicative to the operative of the time, direction and extent at or to which it is necessary for him work together.

esirable or expedient. It is preferred, however, to construct the v the surface of the work,

to swing or tip the work to maintain the surfaceand edge of the work in proximity to the tools in a horizontal plane and in the line of feed, respectively. But it is preferred to employ either a depth gage for controlling the depth of cut of the knife or a surface gage for controlling the depth below the surface of the sole at which the awl operates or both a gage for the knife and a gage for the awl, one or both of which may a so form part of the means for relatively tipping the tool and the work to maintain the tool substantially normal to the work;

\Vhile the invention contemplates forming the tongues in an independent. machine, if found desirable or expedient, it is referred to form the tongues in the same mac line that forms the stitch to secure the parts of the Her'etofore in sewing machines provided with an awl and a needle operating upon the same side of the work it has been customary tooperate the awl and needle in parallel lanes and provide mechanism either for shifting the needle so that the needle will operate through the hole made bv the awl or for shifting the awl to bring the awl hole in position for the operation of the needle.

A further feature of the invention contemplates the provision in a sewing machine, of a needle and an aw] arranged to operate in intersecting paths in the. same plane whereby the necessity of shifting the needle into and out ing the awl hole or the shifting of the awl into and out of the path of the-needle is obviated.

I urther'features of the invention contemplate the provision of a simplified and im proved we t uide whereby a welt slit longitu-dinally song one edge may be sup ported and guided; the provision in a machine for sewing members together, one of which is tongued, in which is a looper, of

improved means for actuating the looper whereby the thread is looped over the tongues; the provision in a machine for sewing members together, one of which is tongued, in whichis a looper, of means for actuatin the looper whereby the tongues are subjecter to pressure to depress them subs'tantially b'elow thesurface of the sole; the provision in a tongue forming machine, of improved means for actuating the knife whereby the knife is preliminarily adjusted to the height of'the work prior to its slashing stroke; the provision ina shoe machine provided with a sole support, an operating tool, and means for relativelyactuating the support and tool to transferthe point of operation of the tool around the shoe, ofjniproved means for relatively tipping the tool and shoe whereby the tool is maintained substantially normal to the sole; the proof the path of the awl in makill] vision in a shoe machine provided with an operating tool and a work supporting jack. of improved means for elevating the tool into an inoperative position and nnclamping the jack whereb the work Ina t be conveniently inserted and withdrawn rom the machine; of improved means for securing a shoe supporting jack to a pattern plate whereby the jack may be adjusted upon the pattern plate to permit the work on the jack to be brought into correct relation with the pattern plate. and in certain devices, combinations and arrangements of parts tending to improve and simplify the operation of shoe and other sewing machines and enable them to operate with certainty and Without liability of breakage of parts. The advantages of these devices, combinations and arrangements of parts will be obvious to those skilled in the art from the following descrip tion.

The various features of the present invention will he best understood from an inspection of the accompanying drawings illustrating the. best form of the invention at present devised. in which,

Figure 1 is a right side elevation of the machine Fig. 2 is a front elevation;

Fig. 3 is an enlarged detail in front elevation of the tongue and stitch forming devices;

Fig. 4 is a detail in right side elevation of the welt guide;

Fig. 5 is a detail in rear elevation of the needle and its actuating mechanism;

Fig. 6 is a detail in front elevation of the knife, its actuating devices and its support.- ing carrier:

Fig. 7 is a sectional elevation on the line 77. (Fig. 6);

Fig. 8 is a detail in front elevation of the devices for depressing and locking the carrier and also a portion of the mechanisms for operating the looper;

Fig. 9 is a sectional elevation on the line 9-9, (Fig. 2);

Fig. 10 is a sectional elevation on the line 1e 10, (Fig. 8);

Fig. 11 is a broken detail in plan of the looper and its actuating mechanism- Fig. 12 is a detail in plan showing another position of the looper and its actuating mechanisms;

Fig. 13 is an elevation. partly in section. of the looper;'

Fig. 14 is a sectional elevation of the jack and its supporting, actuating and guiding mechanisms;

Fig. 15 is a sectional elevation on the line 15-45, (Fig. 14)

Fig. 16 is a plan. partly in section, of the pattern plate and its associated parts;

Fig. 17 is a plan of the jack, attached to the pattern but removed from the machine;

Fig. 18 is a detail elevation. partly in section. showing the manner in which the furcular slashes are formed in the sole:

Fig. 19 is a perspective of the knife employed to slash the sole:

Fig. 20 is a detail elevation showing the operation of the knife on a longitudinally inclined surface:

Fig. 21 is a detail plan showing the awl penetrating the edge of the sole. intersecting the slash below the surface of the sole and separating the material of the sole bounded by the tines of the fork from the body portion of the sole:

Fig. 22 is a detail sectional elevation of the parts illustrated in Fig. 21:

Fig. 23 is a perspective. partly in section. additionally showing the manner in which the knife forms the furcular slashes in the insole;

Fig. 24 is a perspective. partly in section. showing the position of the surface gage and the manner in which the material humps heneatlpit during the penetration of the awl:

Fig. 25 is a perspective. partly in section. showing the operation of the needle which enters the work in the slit of the welt and emerges from the face of the sole through the stem of the furcular slash;

Figs. 26. 27 and 2B are pcrs mctives showing various positions of the loopcr in loop ing the thread over a tongue and subjecting the tongue to pressure;

Fig. 29 is a perspective. part iv in section. of a finished shoe having its inseam sewn by the machine; and

Fig. 30 is a detail in plan of a portion of the driving and locking mechanism for the pattern plate.

Referring first to Figs. 1 and 19 to 2 for a. preliminar v general description of the machine of the drawings and the work per formed thereby the lasted shoe is supported upon a jack which is actuated automatically to transfer the point of operation of the tools around the shoe. These tools comprise tongue forming devices and stitch forming devices. The tongue forming devices comprise a knife for forming a vertical furcular slash in the margin of the sole and an awl for intersecting the i'urcular slash below the surface of the insole and separating the matcrial of the insole bounded by the tines oi the fork from the hod vportion of the insole thus forming a tongue integral therewith. The knife and awl thus form a scrica of tongues rectangular in cross section along the peripheral margin of the sole for the rc ception of the inseam stitches. The knife and awl are maintained substantially normal to the face and edge of the insole respectively and also to each other as their points of operation are transferred around the shoe thus insuring the formation of uniform tongues. As the furcular slashes and awlcuts are formed normal to the fare and edge of the insole respeetively the sides of eat-h tongue are perpentlieular to the faee ot' the insole and the top and hottom faces of each tongue are parallel. therehy produeing a substantial pieee of stoek for rigidly holding the stitrhes. The stitt'll forming deviees r'oniprise a straight eye-pointed needle for earrying the thread through the welt. upper and insole and a looper or spreader for loop ing the thread over the tongues and snhjet-tiing the tongues to pressure to depress them suhstantially helow the snrt'are ol the sole.

In the illustrated embodiment of the invention the lasted shoe lu-reinatter termed for eonvenienre the shoe is mounted upon a iaek 1 having a spindle :2 and a saddle 3 (Fig. H). Ily a lasted shoe I mean the step produet of the lasting operation. Broadly eonsidered this step irodnet may he produred hy the ordinary lasting proress employed in lasting (loodytmr welt shoes. Prel'erahly, however. the lasted shoe, as shown in Figs. 18 to it? ini' lusive. eomprises a stretrhed upper seeured to the edge t'aee oi the insole on the hottoni of the last. The spindle 2 is secured to a boss 4 formed on a plate 5 (Fig. 14') earried hy two vertit-al plates ti rising from a hase T. The saddle 3 consists of a pad of yielding material.

mounted upon the upper end of a ehamhered post t. The post ts is mounted in 1 standard SJ and is guided to slide vertirally therein by a screw it) \vhieh is arranged to engage a slot 11 formed in the post H. 'lhp saddle 3 is normally held elevated by a roiled spring 12 which is interposed het ween the hottoin of the standard 9 and the top of the rhamher in the post H. To permit the saddle to he t'oreed upwardly to jaek the shoe the post 8 earries a rat-k l3 \\'lll(ll. when thesaddle is under the iulluenee ot' the spring 12. registers with an opening l-l Formed in a worm 15. This worm is mounted in a housing lti. on a vertieal shaft 1T journaled in the standard it. and is provided with a handle 18 by means of whirl] the opernti\ e niaya ngage the worm with the l'ilt'h' id and fttl'fl' the saddle 3 upwardly to jaeh the shoe. lo permit the jaek to aeronnnodate ditl'erent sizes of shoes the standard it is mounted to slide on ways lit formed on the plates t3. 'lhe hase T is provided with a pair of runners :ltJ (Figs. 14 and t7) whit-h are arranged to slide over the smooth upper snrfare of a platen 21 (Figs. 1;. ti and it'd. 'lhe platen is provided with a pair of dowelsv 2:5 (Figs. 15 and It'd arranged to engage soekets ill formed in the upper snrt'aee ot a hraeket Bl whieh is holted (Fig, l) to the leg frame :25 ot' the maehine. "lhe platen l is additionally serured to the hrarket 2| y means of a pair of serews it] (Figs. la and lti).

In order to automatiealty' slide the jai-k it) is driven through over the platen to transfer the point of operation of the tools around the. shoe the iaek is secured to a pattern plate 27 (Figs; 14. 15 and 16) whicllis provided with a guiding flange 28 the internal periphery of Wlllt'll has the same eontour as the edge of the sole on the jack. Intruder to permit the peri 'iheries of the sole and the pattern to be vertieally alined so that similar portions of the sole and pattern will move in unison throughout the operation of the maehine the pattern plate is provided with a pair of hutton hole slots 29 (Fig. 16) which receive headed bolts 30 (Fig. 14) earried hy the base T of the jack. Vl'ith this eonstruction the jack may be placed a on the pattern hy passing the heads of tie bolts 30 through the large ends of the huttonhole slots 29. The jaek is then shifted on the pattern until the edge of the sole is vertieally alined with the internal edge of the pattern. This movement of the jack hrings the shanks of the hi lts within the small ends of the hnttonhole slots 2!). To clamp the jack to the pattern plate the ends of the shanks of the bolts are provided with pins fil-which are engaged by the opposite ends of a leaf spring 32 ar ranged to embrace the shanks of the halts. The spring is bowed to exert rlatnping pressure upon the bolts and thus elantp the jaek to the pattern hy a triangular eani 33 seeured to a shaft 3t journaled in the plates 6 and a tnatetl through a handle 35 (Figs. 2 and 17') earried hy the shaft. The base 7 rarries a pair of pins 3t; whieh aet fulrrnins tor theleaf spring 3:! during the howing thereof.

The pattern plate is aetuated to transfer the point of operation of the tool around the shoe h a pin wheel 31' whirh engages a series ol' holes 38 hored in the guiding ltange 2 The pin wheel It? is seenred to the upper end ot a Ytl'tlitl shat't 59 journaled in hearings formed in the hraeket 2-1. The shaft It! is driven from a horizontal shalt ltl (Fig. 1). one end oi \Ylllt'l] is jonrnaled in the liraeket 2t and the other end of whit-h is journaled in a hoss ll suitahly formed on a head t for the operating tools. through hevel gears it} (l igs. I and Ill. The shaft hevel gears 44- (Fig. l from a vertiral shal't t5 jonrnaled in the head 4:. 'lhe upper end of the shaft 45 earries a pin wheel "ll l whit-h is driven interinittently hy a modified worm 47 earried by a rannshal't lH jonrnaled in a yoke lit formed on tlielhead iii. The ttlltt shaft is is driven h a helt (it) \Ylllt'll passes over a pulley 51 on the ram sha l t and a pulley 52 rarried h) a horizontal shal't fill jonrnaled in the head l2. The shaft 5.- looselyrarries a pulley ill whirh is driven through a helt (not shown} from some suitahle sonree of power. The pulley 5t carries a t'rirtion disk .35 which arranged to he engaged hy a similar disk tween adjusting and lockin 56 splined on the shaft 53. The disk 56 is normally held away from the disk 55 and in contact with a braking surface 57, formed on a bracket 58 carried by the head 42, by a spring 59 coiled around a rod 60 pivoted on the bracket 58. The spring is interposed benuts 6] on the rod 60 and the upper arm 0 a modified bell crank lever 62 secured to a rock shaft 63 journaled in the bracket 58. The lower arm 64 of the lever 62 is formed as a yoke and is provided with trunnions 65 arranged to engage a disk 66 loosely mounted on the shaft Then it is desired to rotate the shaft 53 the disk 56 is moved away from the braking surface 57 and into contact with the disk 55 on the pulley 54 against the tension of the spring 59 by the operative through a treadle rod 67 which is connected to an arm 68 projecting from the rock shaft 63.

In order to swing the jack laterally the points of operation of the tools are transferred around the shoe to maintain the edge of the shoe sole in proximity to the tools in the line of feed the guiding flange 28 on the pattern plate is engaged by a guide roll (59 arranged to engage inside the flange and by guide rolls 70 and 71 arranged to engage outside the. flange (Figs. 14 and 1b. The guide roll (59 is carried on the upper end of a vertical pin 72 (Fig. 14) which is rotatahly mounted in a bearing formed in the bracket 24. The pin 72 carries a planr surfaced sleeve 73, between the bracket 24 and a collar 74 on the pin. which is provid d with a roll 75 embraced by a cam slot 76 (Fig. 15) formed in a slide 77 slidahly mounted in the bracket 24. The slide 77 is connected to an arm 78 (Fig. 1) projecting from a rock shaft 79 journaled in the leg frame A second arm 80 projecting from the rock shaft 79 is provided with a handle H1 by means of which the slide 77 mav be actuated to cause the cam slot 76 to ac, upon the roll 75 and depress the guide rod (if) below the {Illiillllfl flange 28 and also below the sur face of the platen. By engaging the flange :28 the guide rolls 6!), 7). and Tl act lo swing the jack laterally about an axis tangential to the edge of the shoe so e to bring the edge of the last or shoe sole into the desired position with relation to the line of feed. In order to enable the rolls to engage the flange at all iimcs without binding as they traverse the reverse curves of the flange at the shank and around the toe the guide rolls 70 and 71 are iournaled respectively in arms '42 and 83 (Figs. 14 and 16) which are tied together by a pair of tie-pieces 8-4 and 85. The arms 82 and reciprocate in guideways so (Fig. 15) formed in the frame :34 and are actuated in a direction to press the guide rolls 70 and 71 against the flange 28 by means of a spring 87 looselv coiled around a guiding pin 88 on the frame 24- and interposed between the frame 24. and a tension adjusting screw 89 carried by a chamber 90 secured to the tie piece 85. To withdraw the guide rolls 70 and 71 from the guiding flange at the same time as the guide roll 69 is withdrawn therefrom the slide 77 is provided with a horizontal extension 91 (Figs. 14. 15 and to). This extension is provided with a cam slot 92 (Fig. 16) which embraces a roll 93 carried by the tie piece 84. )Vith this construction a downward movement of the handle 81 simultaneously depresses the guide roll (3!) and withdraws the guide rolls i and 71 from the flange 28 against the tension of their actuating spring 87. It will be noticed from an inspection of Fig. 16 that the cam slot 92 is wide enough to permit the roll 93 to move therein as the guide rolls 70 and 71 yield to the curves of the pattern plate.

The devices for forming a series of tongues along the peripheral margin of one face of the sole comprise a knife. 94 (Fig. 15*) and an awl 5J5 igs- 2i and 22). The knife is constructed to form a fureular slash comprising a fork 3H: (Fig. 21) having two tines 97. and a stem ill-4 connected to the fork. To this end the knife is provided with a straight cutting edge 99 for forming the stem and a U-shaped cutting edge 100 for forming the fork and tines. The knife also carries a block lUl. arranged in a U- shapcd channel 102. which acts as a gage for limiting the. depth of cut (Figs. 18 and 23). The formation of the. tongue commenced by the knife is completed by the awl 5!? which has a width substantially greater than the knife (Fig. 21) so that when it penetrates the sole and intersects the slash below the surface of the sole it will separate the material bounded by the tines of the fork of the slash from the body portion of the sole thus forming a tongue integral with .the sole.

The knife U4 is secured to the lower end of a slide 103 (l ig. 13) mounted to slide bcnealh a cover plate 104 in square ways formed on a segmental carrier 105. This carrier is provided upon its exterior face with two tracks 105 (Fig, 10) which are engaged by four rolls 107 arranged in pairs one pair being located on each side of the. carrier (Figs. 6 and 8.) Each pair of rolls is journaled upon. ball bearings 10% carried in races formed on a stud 105) which is socured to a slide 110 (Figs. (3, H and fl) mounted to slide vertically beneath cover plates 111 in square ways formed in the head 42. The slide 110 is loosely supported in its ways so find it may I'lM' and fall in accordance with the varying heights of work. The interior face of the carrier 105 is engaged by a fifth roll U2 (l igs. 5 and 5)) ,which is journaled on v a stud 112i carried by an extension 114 of the slide 110. With tlIlSICOII- st ruction the carrier 105 is free to tip laterally on the. slide 110.

In order to actuate the knife to slash the sole the slide 103 is provided with a pin 115 upon which is loosely mounted a block 116 which is loosely embraced by a slot 117 formed in the horizontal arm of a'bell crank lever 11% pivotally mounted upon a rod 119 carried by a bracket 120 bolted to the head 42. The vertical arm of the bell crank lever 118 is yieldingly connected to an arm 121 pivotally mounted on the rod 119. This coi'inection consists of a rod 122, pivoted to the arm 121 and arranged to pass loosely through a boss 123 formed on the vertical arm of the bell crank lever 11%. and a spring 124. coiled around the rod 1:22 and interposed between the boss 123 and adjusting and locking nuts 125 on the rod. The upper end of the arm 121 is provided with a ratchet 126 which is engaged by a four-toothed pawl or detent 1:7. The pawl 127 is mounted to slide beneath a cover plate 128 (Fig. 7) in ways formed on an arm 129 pivoted on the rod 11!). The pawl is normally held in engagement avith the ratchet 1:26 by a spring 130 which is coiled around a pin 131 carried by the ,pawl and interposed between the top of the pawl and an overhanging ledge 132 formed on the arm 1:29. The upper end of the arm 12! is provided with a roll 1353 engaged in a groove 134 formed in the rear face of a disk 135 (Fig. 1) on the cam shaft 48.

The awl 95 is mounted in a slot 136 (Fig. 3) formed on a slide 13? mounted to slide beneath a cover plate 138 in square \vays formed on a support 139. The support 139 is pivoted at 110 on an arm 141 secured to the carrier 105. Thrweight of the arm 141 and the parts carried thereby is counterbalanced by a spring 111 (Fig. 5.) The awl is held against a pin H2 in the slot 136 by a block 143 which is held in place by a screw 141. In order to actuate the awl the slide 137 carries a pin 145 upon which is loosely mounted a block 146 which is loosely embraced by a slot 147 formed in the lower arm of a modified hell crank lever 1-18 which is pivotally mounted on a pin 1 19 (Figs. 2 and 5) car ried by the head -12. The upper arm of the bell crank lever 148 is provided with a roll too which engages a groove 151 formed on the front face of the disk 135.

In order to insure the formation of uniform tongues it is desirable to maintain the knife throughout its operation upon the sole substantially normal to the face of the sole at its point of operation and to maintain the awl substantially normal to the edge of the sole at its point of operation. \Vhile a shoe sole is curved both laterally and longitudinally. 1 have discovered that it is only necessarv to ccommodate the knife and awl to the lateral curvature of the sole in order to obtain uniform tongues. I find that in operating upon a longitudinally curved surface, for instance, at the juncture of the shank and ball, the depth gage 101 com-. presses the stock upon the high side of the work (Fig. 20) so that the surface of the material bounded by the tines 97 of the slash remains parallel to the cut formed by the awl. No misshapen tongues are therefore formed notwithstanding the fact that the machine is not )l'OVidBd with mechanism for longitudinally tipping the tongue forming devices. By maintaining the knife and awl substantially normal to the face and edge of the sole respectively. the sides of the tongues are formed perpendicuhn' to the face of the insole and the top and bottom faces of the tongues are parallel. This construction produces a tongue substantially uniform in width and thickness throughout its length thus insuring a substantial piece of stock to hold the stitches. \Vith this construction all danger of the tongue buckling so that it can be pulled back through the awl-cut when the stitch is being set and thus permit the thread to slip from the tongue is obviated. In order to accommodate the knife and awl to the lateral curvature of the sole the carrier 105 is provided with a pair of gages or feet 152 having rounded bottoms 153 arranged to engage the sole. \Vhen the jack is actuated to transfer the points of operation of the tools around the shoe these feet drag over the sole. under the influence of the weight of the slide 110 and its associated parts. As the carrier 105 is mounted for free lateral movement on the slide 110 the feet uniformly engage the sole notwithstanding the variations in the lateral curvature thereof and thus swing the carrier to maintain the knife and awl substantially normal respectively to the surface and edge of the sole. ith this construction the knife is tipped laterally to maintain it substantially normal to the surface of the sole and is also caused to rise and fall in accordance with the varying heights of the work. In order to obviate any danger of the feet not adapting themselves accurateiy to the curvature of the sole under the influence of gravity the machine is provided with mechanism for additionally exerting pressure upon the feet to insure their acconnnmlat ion to the surface of the sole. To this endlhe slide 110 carries a ratchet. 151 (Fig. 8) which is engaged by a pawl 155 pivotally mounted on an arm 15" projecting from a rock shaft 157 journaled in the bracket 120. The pawl 1515' is pressed toward the ratchet 1.51 by a leaf spring 158 carried by the arm 1515 and arranged to engage a tail 159 on the pawl. When the feet 152 are acconunodating themselves to the lateral curvature of the sole under the inflnenee ot'gravit v the pawl 155 is held out of engagement with the ratrhet 154 hr a dog 100 earried by one of the rover plates 111. To actuate the pawl 155 to engage the ratchet 15-1 and depress the slide 110 after the gravity operation of the Feet 152 the Iot'k shaft 157 earlies a seeond arm 161 which is eonnected by a yielding eonneetion to the upper arm of a modified hell erank lever 102 pivoted on the'roek shaft 137. The yielding conneetion eonsists of a rod 103 pivoted to the lever 102 and arranged to pass loosely through a hoss 104 formed on an arm 101. and a spring 103. roiled around the rod 10 and interposed hetween the hoss l6l and adjusting and lot-king nuts 107 on the rod. The upper arm of the hell erank lever 102 earries a roll 10R engaged in a groove 100 l'ormed in the hark fare of a disk 170 on the eam shaft 49.

In order to loek th earrier 105 in the position determined For it h v the feet 152 the earrier is provided. hetween the traeks 10 with a series of teeth 171 (Figs. (3. H. 9 and 10) \vhieh are engaged h v a three-toothed detent 17; (Figs. H and 0). The detent' is earried h a slide 172, (Fig. 51) mounted to slide on the hark ot' the slide 110. The detent 172 is normally held out of engagement with the teeth I71 h v a horizontal eam slide 17-l arranged to engage a roll 175 whieh is journaled on a stud 170 seenred to the slide 173 and arranged to work in a slot 177 formed in the slide lit]. The roll 17.) is held against the ram slide l7-l lrv a eoiled spring 178 whieh is interposed hetween a itlilt'lttl 17!.) secured to the slide 110 and a hloek W0 arranged to partially house the roll 17.3 and provided with a \'()l\'(! 1 1 arranged to st'rad title the stud 170. The rain slide 17l is mounted in ways 182 formed in a plate 1 seeured to the slide 110. The ram slide tTl is provided with a depression In! (Fig. is) whieh permits the roll 175 to drop aml thus allow the detent 172 to engage the teeth 17!. To aetnate the ram slide 171 to elevate the roll 173 the slide is eonnet'ted to an aeluating hloek 185 (Fig. H) mounted to slide heneath a cover plate 180 in square ways formed on the hraeket 120. The eonnertion het ween the ram slide 171 and its aetuating hloek 1R5 eomprises a tongue 1R7 l'ormed on the slide aml a vertieal groove 188 formed on the hloek. This eonstrnetion permits the ram slide 174 to move vertieall v with the slide 110 without hreaking its eonnertion with the hloek. The hloek 185 is aetnated to loek and unloek the earrier 105 by a eon neetion het ween the hloek and the lower arm of the hell erank lever 102. To this end the block 185 earries a pin 189 whieh passes through a slot 100 formed in the bracket 120 and is loosely emhraeed by a vertical slot 191 formed in the lower arm of the hell crank lever 162. With this construction the slide 110 and the aetuating liloek is? are hoth aetnated from the ram groove 109 hot owing to the loeation of the depression 181 in the eam slide 174 the slide 110 is depressed before the roll 17.) drops into the depression for the purpose of lot-king the earrier 105.

In order to permit the knife to shift with the rarrier as the earrier 105 moves vertiealtv to measure the height of the work and tips aterally to maintain the knife snhstantiallv normal to the fare of the sole at its point of operation the maehine is provided with merhanism for releasing the pawl 12? from the ratehet 120 and thus allow the hell erank lever 11% and its assot'iated parts to follow the movements of the knife. To this end the arm 12 earl'ies a hent lever 19? pivoted on the arm and arranged to engage ridges 107 formed on the walls of a slot 199 formed in the detent 127. The upper end of the lever ltlti earries a roll ltlt arranged to he engaged by a ram plate 20 tseruretl to the hark fare ot'' the ram disk 12th. This plate 200 is eonstrnrted to artnate the roll 10!] to with draw the pawl 127 from the ratehet 120 during the heightmeasuring and enrvatnre lind-- ing movements of the rarrier 10-3. Prior to the loeking of the earrier lit? the roll 1.08) rides ott' the plate 200 and the pawl 127 then engages the ratrhet 120 in the position to whirl) it has heen moved hv the earrier lit-2). the work is tirst measured hv one llltttltl' nism and the knife is aetnated by an independent meehanism whirl] is eonneeted to the lirst nalned meehanism h v an adjnstahle or ln'eakahle eonneetion. When the ratehet 120 is released from the pawl 127 the weight l' the hell crank lever and its assoeiated parts telnl to move the knife toward the work To overeome this tendenev the horizontal arm of the hell rranlv' lever 11h is eonnerted to the slide 110 h a roiled eounlerhalanring spriu 201 (Fig. (3).

In order to aeeuratelv determine the distanee helow the fare of the insole at \vhieh the :|\\'l operates the support tilt) earries a tool or gage 202 (Figs. 2 and 3') arranged to engage the marginal portion of the sole adjaeent lllhp0llli of operation of the knife. The gage is thrilled on the end of a hent arm 2021 whieh is provided with a shank 204 rotatahly mounted in a sleeve 205 secured to a hraeket 200 earried h v the support 130. The axis ahout whieh the gage rotates intersects the medial line of the gage at. the snrt'aee ot the sole st} that the gage may readily adapt itself to the longitudinal enrvatnre thereof. The shank 2th earries a pin 207 the opposite ends of whieh engage lugs 208 formed on the sleeve 20;? and thus limit the rotation of the gage in hoth direetions. The gage is pressed against. the sole hy a leaf spring 200 (Fig. 5) one end of which is secured to the arm 1'11 With this ronstrnrtion the height of carried by the carrier 105 and the other end of which engages a pin 210 secured to the support. 139. Movement of the gage under the influence of the spring 209 is limited by a pin 210 (Fig. 5). The gage has'.a two point contact with the sole (Figs. 24 and 25) so that the material displaced by the awl may hump beneath the gage and thus revent the spring pressed gage from binding the awl in the work.

After a tongue is completed the stitch tongue hy the looper as the needle withdraws from the work. The looper also subjects the tongue to pressure after the thread. is lqoped over the tongue to depress the tongue sub- Sl'ttlll'lilllj. below the surface of the sole."

The needle 211. of the straight eye-pointed type. is secured in a slot 213. formed in a.

slide 214 mounted to slide beneath the cover plate 138 in ways formed in the support 139, by a plate 21:") held in place by a screw 216 Fig. 3). By employing a straight needle to carry the thread through the Work it is )ossible to oierate the aw] and needle inl planes intersecting in the work thus obviating the necessity of providing mechanism for relatively shifting the awl and needle to cause them to operate successively at the same point on the sole. To actuate the needle the slide 214 carries a pin 217 Fig. 5) upon which is loosely mounted a block 218 which is loosely embraced by a slot 219 formed in the lower end of a modified bell crank lever 220 pivotally mounted upon a. pin 221 carried by the head 42. The upper arm of the hell crank lever 220 is provided with a roll 222 engaged in a cam groove 223 formed in the front face of the disk 170.

The wax thread used by the needle is drawn from a suitable source of thread sup ply through a tension device 224, around a grooved pulley 225 rotatably mounted upon an arm 226 adjustahly carried by the ell crank lever 220. around a second grooved pulley 227 rotatahly mounted upon the head 42, through a second tension device 228 carried hy the lower end of the arm 226, and finally through a slot 229 formed in the support 139 to the eye of the needle.

The looper 2152 consists of a bent nose 230 formed on the lower end of a shaft 231 which rotatahly and slidahly mounted in a bearing 22%: formcilon the bracket 20a, The looper is normally maintained elevated above the work by a spring 233 (Fig. 13)

thread looped over the tongue by coiled around the shaft 231 and interposed lietiwcen the bottom of the bearing 2:52 and a shoulder 234 formed on the shaft. After the needle has passed completely through the work in the manner illustrated in Fig. 25, it is withdrawn from the work and forms a loop in the thread (Fig. 26) during: the first part of its return stroke. The looper is then oscillated in a direction to pass the nose .230 between the shank of the needle and the thread (Fig. 26). This oscillating movement continues as the needle withdraws from the work (Figs. 12 and 26) until the thread is looped over the tongue. As the needle returns to its original position the needle arm simultaneously pulls upon the the looper to set the stitch and draw a fresh supply of thread from the thread supply.

In order to oscillate the loopcr in the manner described the shaft 231 is universally jointed, through a rod 235; to a shaft 2236 (Figs. 2 and 8) which is slidablv andv rotatahly mounted in hearings 237 formed on a bracket 23S carried by the head 42. Splined to the shaft 236 is a pinion 2239 which is held from longitudinal movcmcnt on the shaft by a collar 240 interposed lictwecn the pinion 239 and the upper hearing 237 (Fig. 8). The pinion is actuated to oscillate the looper first in one direction and then in the other by rack 241 (Fig. 11) formed on a rod 242 the forward end of which i. journaled in the bracket 238 and the rear end of which is rectangular and journaled in a square hearing formed in a bracket 243 carried by the head 12. The rectangular portion of the rod 242 carries a pin 244 which rcciprocates through a slot 24:) formed in the bracket 243. The pin 244 carries a roll 245 which engages a peripheral groove 246 (Fig. 1). formed in a disk 247 on the can] shaft 48.

After the thread has been looped over the tongue the looper is actuated to subject the tongue to pressure to depress it substantially helow the surface of the sole. To this end the upper end of the shaft 236 is provided upon one side with a series of teeth 248 which. after the looper is at the end of its thread looping stroke, are positioned for the operation of a pawl 249 pivotally mounted upon one end of an arm 250 projecting from the front end of a rock shaft 251 journaled in the brackets 238 and 243. The pawl is normally held against the shaft 236 by a leaf spring 252 one end of which is securcd to the arm 250 and the other end of which presses upon a tail 253 formed on the pawl. The rear end of the rock shaft 251 is provided with a second arm 254 which is connected by a yielding connection to a third arm 2S5 loosely mounted on the rock shaft 251. The yielding connection consists of a. rod 256 pivoted to the arm 255 a reciprocating 

